Dancers, from left, Corey Landolt, Sona Kharatian, Sarah Steele, and Gian Carlos Perez of the Washingon Ballet work on choreography with Ethan Stiefel during rehearsals for Frontier on May 3, 2017. The piece is Julie Kent's first commission as new director. The ballet is about space exploration, and the costumes, designed by Ted Southern of Final Frontier Design, look similar to what astronauts wear.